CN104005451A - Pre-opening pressure relief device - Google Patents
Pre-opening pressure relief device Download PDFInfo
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- CN104005451A CN104005451A CN201310061592.3A CN201310061592A CN104005451A CN 104005451 A CN104005451 A CN 104005451A CN 201310061592 A CN201310061592 A CN 201310061592A CN 104005451 A CN104005451 A CN 104005451A
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- valve
- pressure
- water
- pipe network
- relief device
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Abstract
The invention relates to a pre-opening pressure relief device. The pre-opening pressure relief device comprises a pressure relief valve, a needle valve, a solenoid breakover valve and a ball valve, a water inlet by-pass pipe which is communicated with an upper cavity is arranged at a water inlet end of a valve body, a water outlet by-pass pipe which is communicated with the upper cavity is mounted at a water outlet end of the valve body, the needle valve is in tandem connection with the water inlet by-pass pipe, and the solenoid breakover valve and the ball valve are in tandem connection with the water outlet by-pass pipe. By means of the technical scheme, the pre-opening pressure relief device collects pressure data of a pipe network through a pressure sensor to control opening or closing of the solenoid breakover valve, the pressure of the upper cavity of the valve body can be reduced or increased, the valves can be opened or closed in advance before the pressure of the pipe network reaches to the maximum value or the minimum value, surplus energy of the pipe network can be released, the pressure in a system can be stabilized between a high pressure set value and a low pressure set value, thereby, damages of a pipeline of the pipe network to pipes, devices and the like due to halting and power failure of a water pump and sudden closing of the valves can be avoided, normal operation of the system can be guaranteed, and functions of a water-proof hammer and overpressure protection can be achieved.
Description
Technical field
The present invention relates to a kind of pipeline pressure relief device, particularly relate to a kind of pressure relief device of opening in advance.
Background technology
In the water system of prior art, pressure relief device is all to be controlled by mechanical pilot valve, and its reaction speed is slow, and poor stability can not reduce or increase valve upper cavity pressure immediately, delays the unlatching of valve or closes; When there is water hammer, can not discharge fast pipe network excess enthalpy energy, easily pipe network is damaged, had a strong impact on safety and the application life of pipe network.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of pressure relief device of opening in advance, pass through the technical program, can preset the close value of rated high voltage value, nominal low-voltage value and the ductwork pressure reply of solenoid pilot valve unlatching, make ductwork pressure when having obvious fluctuation, this device can be made a response rapidly and be opened in time valve, discharge pipe network excess enthalpy energy, prevent the destruction that the phenomenons such as water hammer and superpressure cause pipe network system while occurring, guaranteed the normal operation of system and often prolonged the application life of system.
The technical scheme that the present invention addresses the above problem is: a kind of pressure relief device of opening in advance, comprise relief valve, on the valve body of described relief valve, be provided with epicoele, include needle-valve, electromagnetism conducting valve and ball valve, on the water inlet end of described valve body, be provided with the water inlet bypass pipe being connected with epicoele, on the water side of described valve body, be provided with the water outlet bypass pipe being connected with epicoele, described needle-valve is serially connected on water bypass pipe, and described electromagnetism conducting valve and ball valve are serially connected on water outlet bypass pipe.
As further optimization, also include control cabinet and pipe network, on described pipe network, be provided with pressure transmitter, described pressure transmitter is connected with control cabinet by connecting line with the solenoid pilot valve on water outlet bypass pipe.
On the valve inleting water end of described relief valve, be provided with pressure meter.
Described solenoid pilot valve be redefined for net pressure higher than set rated high voltage value time, or ductwork pressure is during lower than predefined nominal low-voltage value, solenoid pilot valve is opened, and makes epicoele in release conditions.
Adopt the beneficial effect after technique scheme to be: a kind of pressure relief device of opening in advance, pass through the technical program, under the effect of pressure transmitter, collect the data of ductwork pressure, and according to image data, through control cabinet, control opening or closing of solenoid pilot valve, thereby reach, reduce or increase the pressure in valve body epicoele, control the unlatching of relief valve or close, play and discharge pipe network excess enthalpy energy, maintain pressure stability in system between rated high voltage value and nominal low-voltage value, thereby avoided pipe network pipeline to shut down at water pump, have a power failure and when valve is closed suddenly to pipeline band infringement, guaranteed the normal operation of system, played water hammer-resistant, the effect of overpressure protection.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Wherein, 1 pressure transmitter, 2 valve bodies, 3 pressure meters, 4 needle-valves, 5 electromagnetism conducting valves, 6 ball valves, 7 control cabinets, 8 relief valves, 9 epicoeles, 10 water inlet bypass pipes, 11 water outlet bypass pipes, 12 pipe networks.
The specific embodiment
Below in conjunction with accompanying drawing, technical scheme of the present invention and specific embodiment are described in further detail.
As shown in Figure 1, what the present invention relates to opens pressure relief device in advance, comprise relief valve 8, on the valve body 2 of described relief valve 8, be provided with epicoele 9, also include needle-valve 4, electromagnetism conducting valve 5 and ball valve 6, on the water inlet end of described valve body 2, be provided with the water inlet bypass pipe 10 being connected with epicoele 9, on the water side of described valve body 2, be provided with the water outlet bypass pipe 11 being connected with epicoele 9, described needle-valve 4 is serially connected on water bypass pipe 10, and described electromagnetism conducting valve 5 and ball valve 6 are serially connected on water outlet bypass pipe 10.
As further optimization, also include control cabinet 7 and pipe network 12, on described pipe network 12, be provided with pressure transmitter 1, described pressure transmitter 1 is connected with control cabinet 7 by connecting line with the electromagnetism conducting valve 5 on water outlet bypass pipe 11.
On valve body 2 water inlet ends of described relief valve 8, be provided with pressure meter 3.
Described electromagnetism conducting valve 5 be redefined for ductwork pressure higher than set rated high voltage value time, or ductwork pressure is during lower than predefined nominal low-voltage value, electromagnetism conducting valve is opened, and makes epicoele in release conditions.
The present invention is when work, and opening in advance pressure relief device need be gathered pipe network 12 pressure datas and be passed in control cabinet by pressure transmitter 1.
Operating mode one, when control cabinet 7 detects ductwork pressure value that pressure transmitter 1 collects and is greater than predefined rated high voltage value, electromagnetism conducting valve 5 is opened rapidly, epicoele 9 pressure decreaseds of valve body 2, relief valve 8 opens excess enthalpy energy emission to fall; When control cabinet 7 detects the nominal low-voltage value that pipe network surplus pressure value that pressure transmitter 1 collects closes lower than electromagnetism conducting valve 5, electromagnetism conducting valve 5 is closed, epicoele 9 pressure of valve body 2 increase, and relief valve 8 valve closings, until make pressure stability in system between high pressure and low voltage value.
Operating mode two, when pipe network 12 force value that collect when control cabinet 7 detected pressures transmitters 1 are less than predefined nominal low-voltage value, illustrate that pipe network has extremely, may there is water hammer, electromagnetism conducting valve 5 is opened rapidly, valve body 2 epicoele 9 pressure decreaseds, relief valve 8 opens excess enthalpy energy emission to fall, wait for that the abnormal caused water hammer high pressure of pipe network arrives simultaneously, when the pipe network collecting when control cabinet 7 detected pressures sensors 1 recovers setting value that force value closes higher than electromagnetism conducting valve, electromagnetism conducting valve electromagnetism conducting valve 5 is closed, valve 2 epicoele 9 pressure increase, relief valve 8 valve closings, until make pressure stability in system between high pressure and low voltage value.
The above, be only better possible embodiments of the present invention, not in order to limit protection scope of the present invention.
Claims (3)
1. open in advance pressure relief device for one kind, comprise relief valve, on the valve body of described relief valve, be provided with epicoele, it is characterized in that, include needle-valve, electromagnetism conducting valve and ball valve, on the water inlet end of described valve body, be provided with the water inlet bypass pipe being connected with epicoele, on the water side of described valve body, be provided with the water outlet bypass pipe being connected with epicoele, described needle-valve is serially connected on water bypass pipe, and described electromagnetism conducting valve and ball valve are serially connected on water outlet bypass pipe.
2. the pressure relief device of opening in advance according to claim 1, is characterized in that, includes control cabinet and pipe network, on described pipe network, is provided with pressure transmitter, and described pressure transmitter is connected with control cabinet by connecting line with the electromagnetism conducting valve on water outlet bypass pipe.
3. the pressure relief device of opening in advance according to claim 1, is characterized in that, on the valve inleting water end of described relief valve, is provided with pressure meter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310061592.3A CN104005451A (en) | 2013-02-27 | 2013-02-27 | Pre-opening pressure relief device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310061592.3A CN104005451A (en) | 2013-02-27 | 2013-02-27 | Pre-opening pressure relief device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104005451A true CN104005451A (en) | 2014-08-27 |
Family
ID=51366337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310061592.3A Pending CN104005451A (en) | 2013-02-27 | 2013-02-27 | Pre-opening pressure relief device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104005451A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105179948A (en) * | 2015-09-28 | 2015-12-23 | 云南大红山管道有限公司 | Feedback signal access sound-light alarm device of pressure fluctuation pre-stop valve |
| CN113236896A (en) * | 2021-05-18 | 2021-08-10 | 江苏科技大学 | Multistage water hammer protection system |
| CN113640630A (en) * | 2021-08-03 | 2021-11-12 | 广东省医疗器械质量监督检验所 | Method and system for testing pipeline gas pressure regulator |
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| CN201215190Y (en) * | 2008-07-07 | 2009-04-01 | 重庆耐德工业股份有限公司 | Digital solenoid electric valve |
| JP4339716B2 (en) * | 2004-02-13 | 2009-10-07 | 株式会社日邦バルブ | Substitute pipe for water supply line |
| CN102305296A (en) * | 2011-08-29 | 2012-01-04 | 福建高中压阀门科技有限公司 | Direct way electromagnetic control valve |
| CN202401521U (en) * | 2011-12-30 | 2012-08-29 | 孙海玲 | Flow controller with pressure holding function |
| CN102707741A (en) * | 2007-01-24 | 2012-10-03 | I2O供应水有限公司 | Controller and control system for a pressure reducing valve |
| CN203174676U (en) * | 2013-02-27 | 2013-09-04 | 上海威派格环保科技有限公司 | Pre-opening pressure relief device |
-
2013
- 2013-02-27 CN CN201310061592.3A patent/CN104005451A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4339716B2 (en) * | 2004-02-13 | 2009-10-07 | 株式会社日邦バルブ | Substitute pipe for water supply line |
| CN102707741A (en) * | 2007-01-24 | 2012-10-03 | I2O供应水有限公司 | Controller and control system for a pressure reducing valve |
| CN201215190Y (en) * | 2008-07-07 | 2009-04-01 | 重庆耐德工业股份有限公司 | Digital solenoid electric valve |
| CN102305296A (en) * | 2011-08-29 | 2012-01-04 | 福建高中压阀门科技有限公司 | Direct way electromagnetic control valve |
| CN202401521U (en) * | 2011-12-30 | 2012-08-29 | 孙海玲 | Flow controller with pressure holding function |
| CN203174676U (en) * | 2013-02-27 | 2013-09-04 | 上海威派格环保科技有限公司 | Pre-opening pressure relief device |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105179948A (en) * | 2015-09-28 | 2015-12-23 | 云南大红山管道有限公司 | Feedback signal access sound-light alarm device of pressure fluctuation pre-stop valve |
| CN113236896A (en) * | 2021-05-18 | 2021-08-10 | 江苏科技大学 | Multistage water hammer protection system |
| CN113236896B (en) * | 2021-05-18 | 2023-10-27 | 江苏科技大学 | Multistage water hammer protection system |
| CN113640630A (en) * | 2021-08-03 | 2021-11-12 | 广东省医疗器械质量监督检验所 | Method and system for testing pipeline gas pressure regulator |
| CN113640630B (en) * | 2021-08-03 | 2024-02-06 | 广东省医疗器械质量监督检验所 | Testing method and system for pipeline gas pressure regulator |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140827 |